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processEventsWhileBlocked needs to release the lock in a safe way

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Former-commit-id: 1a70af2ae13962db038b0635cc29488019323538
This commit is contained in:
John Sully 2019-10-23 13:19:57 -04:00
parent 60c35d6ea7
commit 8b44d86c7c
1 changed files with 15 additions and 0 deletions
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15
src/networking.cpp
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@ -2998,6 +2998,14 @@ int processEventsWhileBlocked(int iel) {
int iterations = 4; /* See the function top-comment. */
int count = 0;
client *c = serverTL->current_client;
if (c != nullptr)
{
serverAssert(c->flags & CLIENT_PROTECTED);
c->lock.unlock();
c->db->lock.unlock();
}
aeReleaseLock();
while (iterations--) {
int events = 0;
events += aeProcessEvents(g_pserver->rgthreadvar[iel].el, AE_FILE_EVENTS|AE_DONT_WAIT);
@ -3005,6 +3013,13 @@ int processEventsWhileBlocked(int iel) {
if (!events) break;
count += events;
}
AeLocker locker;
if (c != nullptr)
c->lock.lock();
locker.arm(c);
if (c != nullptr)
c->db->lock.lock();
locker.release();
return count;
}